- https://opensource.com/article/20/6/modern-linux-command-line-tools
- https://blog.cloudflare.com/how-we-use-hashicorp-nomad/
- https://jvns.ca/blog/how-updating-dns-works/
- https://www.shellhacks.com/systemd-service-file-example/
- https://blog.callr.tech/gitlab-ansible-docker-ci-cd/
- https://github.com/airbnb/streamalert
- http://www.opsschool.org/
- https://www.digitalocean.com/community/tutorials/what-s-new-in-ubuntu-18-04#netplan-and-systemd-networkd
- https://twitter.com/rothgar/status/959286363781611524?s=03 (SPIFFEio: An Open Standard for Identity in Cloud Native environments)
- https://www.youtube.com/watch?v=MXQmrZPH1vg (Commons Host - Dawn of the Hybrid CDN - Web Performance)
- https://www.infoq.com/presentations/chaos-engineering-resilient-systems
- https://news.ycombinator.com/item?id=22366638 (Unix Toolbox (2008))
- https://www.youtube.com/watch?v=LlvJdK1xsl4 (Monarch, Google's Planet Scale Monitoring Infrastructure)
- https://wgtwo.com/blog/replacing-jenkins-with-concourse/
- https://www.bigmarker.com/gremlin/Increasing-Reliability-with-Modern-Monitoring-and-Chaos-Engineering
- https://www.datadoghq.com/blog/monitor-vault-metrics-and-logs/
- https://www.digitalocean.com/community/tutorials/intermediate-sed-manipulating-streams-of-text-in-a-linux-environment
- https://opensource.com/article/20/4/systemd
- https://techbeacon.com/enterprise-it/monitoring-demystified-guide-logging-tracing-metrics
- https://fzakaria.com/2020/05/31/containers-from-first-principles.html
- https://engineering.convertkit.com/2019/09/09/aws.html
- https://peteris.rocks/blog/htop/
- https://github.com/Tikam02/DevOps-Guide
- https://www.20i.com/blog/dkim-demystified/
- https://www.vaultproject.io/docs/internals/index.html (Please read Internals and Concepts)
- https://news.ycombinator.com/item?id=21698995 (AWS introduces provisioned concurrency for Lambda functions)
- https://news.ycombinator.com/item?id=21714209 (The Amazon Builder's Library)
- https://github.com/open-guides/og-aws
- https://github.com/aws-samples
- https://aws.amazon.com/getting-started/use-cases/
- https://aws.amazon.com/devops/
- http://en.clouddesignpattern.org/index.php/Main_Page
- https://github.com/awslabs/aws-config-engine-for-compliance-as-code
- https://aws.amazon.com/articles/high-availability-for-amazon-vpc-nat-instances-an-example/
- https://cloudbanshee.com/blog/connecting-to-private-api-over-vpn-or-vpc-peering (Private AWS API gateway over VPN; need to use VPC endpoint and ALB that points to a target group containing the VPC endpoint)
- https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html
- https://www.youtube.com/watch?v=aISWoPf_XNE (AWS re:Invent 2017: IAM Policy Ninja (SID314))
- https://www.youtube.com/watch?v=UiXRVHgQ_Gg (Dynamic Content Acceleration: Amazon CloudFront and Route 53)
- https://ec2spotworkshops.com/
- https://superuser.com/questions/62303/how-can-i-tunnel-all-of-my-network-traffic-through-ssh
- https://en.wikibooks.org/wiki/OpenSSH%2FCookbook%2FProxies_and_Jump_Hosts
- https://rahulwa.com/post/monitoring-using-prometheus/
- https://github.com/infinityworks/prometheus-example-queries
- https://prometheus.io/docs/prometheus/latest/configuration/alerting_rules/
- https://traefik.io/
- https://medium.com/solo-io/exposing-microservices-running-in-aws-eks-with-a-microservices-api-gateway-like-solo-gloo-263651e309f8
- https://github.com/rakyll/hey
- http://httpd.apache.org/docs/2.4/programs/ab.html
- https://github.com/flickr/yakbak
- https://goreplay.org/ (replay traffic)
- https://www.youtube.com/watch?v=u8nb_7TW-Ag (Devops @Scale by Baruch Sadogursky)
- http://beej.us/guide/bgnet/ (Beej's Guide to Network Programming)
- http://lartc.org/howto/index.html (Linux Advanced Routing & Traffic Control HOWTO)
- https://rlworkman.net/howtos/iptables/chunkyhtml/index.html (Iptables Tutorial 1.2.1)
- https://www.netfilter.org/documentation/HOWTO/networking-concepts-HOWTO.html
- https://twitter.com/b0rk/status/993939745305702400?s=03
- https://jvns.ca/blog/2018/03/05/things-ive-learned-networking/
- https://resources.oreilly.com/examples/9780596006709/ (Study the iptables scripts here)
- http://newartisans.com/2007/09/neat-tricks-with-iptables/
- https://help.ubuntu.com/community/IptablesHowTo
- https://www.cyberciti.biz/tips/linux-iptables-examples.html
- https://wiki.archlinux.org/index.php/simple_stateful_firewall
- https://wiki.centos.org/HowTos/Network/IPTables
- https://blog.g3rt.nl/openvpn-security-tips.html#15-use-sha-2-for-message-authentication
- http://newartisans.com/2007/09/how-to-administer-openvpn/
- https://forums.freenas.org/index.php?threads/how-to-install-openvpn-inside-a-jail-in-freenas-9-2-1-6-with-access-to-remote-hosts-via-nat.22873/page-22#post-317425
- https://www.youtube.com/watch?v=GPPb2eHYciY (ASA VPN to AWS VPC)
- https://www.reddit.com/r/aws/comments/50gvqv/multiple_vpn_connections_thru_1_cgw/
- https://aws.amazon.com/articles/connecting-a-single-customer-router-to-multiple-vpcs/
- https://news.ycombinator.com/item?id=13425728 (Some DIY VPN options)
- https://www.digitalocean.com/community/tutorials/how-to-create-a-point-to-point-vpn-with-wireguard-on-ubuntu-16-04
- https://medium.com/@midn/high-availability-vpn-on-aws-with-strongswan-bba12b5d4e55
- https://docs.docker.com/config/containers/live-restore/
- https://medium.com/@gchudnov/trapping-signals-in-docker-containers-7a57fdda7d86